My Account
My Garage
Shopping Cart
MY GARAGE Select Vehicle
MY GARAGE

Cometic C5379 Rear Main Seal for Chevrolet Small Block - Gen-1 V8

(GMC G2500 1979-86, K1500 1979-86, C1500 1979-86, K2500 1979-86, Jimmy 1970-86, C3500 1979-86, K2500 Suburban 1979-86, K3500 1979-86 + 162 more models)

Manufacturer

Part Number

C5379
Sale Price

$95.54

1 left at this price

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Cometic Gaskets C5379 is a high-quality rear main seal designed specifically for Chevrolet Generation-1 Small Block V8 engines. This precision-engineered seal provides reliable protection against oil leaks at the crankshaft rear main bearing location.

Key Features:

  • Dual lip design for superior sealing performance and oil retention
  • Single split configuration for easier installation without removing the crankshaft
  • Compatible with both wet and dry sump oiling systems
  • Engineered to OEM specifications for proper fit and function
  • Manufactured from high-grade materials to resist heat, pressure, and chemical breakdown

This rear main seal is an essential component for engine rebuilds or when addressing oil leaks on classic Chevrolet small block V8 engines. The dual lip design ensures positive sealing against both static and dynamic surfaces, while the single split construction allows for installation with the engine in the vehicle. Part number 86625 cross-reference.

Products specifications

Fits

GMC G2500 1979-86, K1500 1979-86, C1500 1979-86, K2500 1979-86, Jimmy 1970-86, C3500 1979-86, K2500 Suburban 1979-86, K3500 1979-86, C15/C1500 Pickup 1967-74, C2500 1979-86, K1500 Suburban 1979-86, G25/G2500 Van 1967-74 + 158 more models

Prop 65

WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov

The condenser works as expected. Came with a vacuum seal as well.

It was very easy to order. Only issue was not given a dilevery date.

ok

Best prices around.

Good fast delivery

Found what I needed at price that is OK.

Part's worked perfectly. Problem taken care of. THANKS

I bought an Exedy Organic Clutch at the best price I could find. Shipping was also prompt. Legit dealer, good business.

easy enough- looks like quality web site

Found a Thule Vertex bike hitch on here for $50 cheaper than amazon. Extremely fast shipping. Definitely recommend purchasing from here.

SO HAPPY! I have to admit, I was hesitant because I had never heard of autoplicity and there wasn't item a picture up for the Thule T2 rack I bought, but wow am I happy. Autopliicity had it for $100 less than other sites and the shipper was Amazon prime fast!!! Definitely a happy customer!!!!

I ordered a Thule 9002 Raceway Bike Carrier on Sunday, April 8 and received the product by Fedex on Wednesday, April 11 with just regular shipping. That is fast service. And the price was $43 cheaper than any other site on the internet (including shipping). I haven't had a chance to use the bike carrier yet but it appears to be new and as advertised with no issues as of this writing. I would definitely recommend this retailer for your next purchase. Order Number: 9111

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy